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Finding the Fourth Proportional to 78,904.86, 118,359.72 and 34,508.76

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Solution

The fourth proportional to 78,904.86, 118,359.72 and 34,508.76 is: 51,764.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,904.86 : 118,359.72 = 34,508.76 : x
  2. Step 2: Convert to fraction form
    78,904.86/118,359.72 = 34,508.76/x
  3. Step 3: Cross multiply
    78,904.86x = 118,359.72 × 34,508.76
  4. Step 4: Simplify right side
    78,904.86x = 4,084,447,171.15
  5. Step 5: Solve for x
    x = 4,084,447,171.15/78,904.86
  6. Step 6: Final answer
    x = 51,764.20

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